perf: implement client-side caching based on ETags to reduce network traffic and potentially reduce load on ZGW API's backend

Dockerfile

@@ -10,19 +10,23 @@ COPY --chown=tomcat lib/webapp/* /usr/local/tomcat/webapps/ROOT/WEB-INF/lib/
 # # Compile custom class
 # FROM eclipse-temurin:17-jdk-jammy AS custom-code-builder
 
-# # Copy dependencies
-# COPY --from=ff-base /usr/local/tomcat/lib/ /usr/local/tomcat/lib/
-# COPY --from=ff-base /usr/local/tomcat/webapps/ROOT /usr/local/tomcat/webapps/ROOT
+# Compile custom class
+FROM eclipse-temurin:17-jdk-jammy AS custom-code-builder
 
-# # Copy custom class
-# COPY src/main/java /tmp/java
-# RUN mkdir /tmp/classes && \
-#     javac \
-#     /tmp/java/org/frankframework/parameters/Parameter.java \
-#     -classpath "/usr/local/tomcat/webapps/ROOT/WEB-INF/lib/*:/usr/local/tomcat/lib/*" \
-#     -verbose -d /tmp/classes
+# Copy dependencies
+COPY --from=ff-base /usr/local/tomcat/lib/ /usr/local/tomcat/lib/
+COPY --from=ff-base /usr/local/tomcat/webapps/ROOT /usr/local/tomcat/webapps/ROOT
+
+# Copy custom class
+COPY src/main/java /tmp/java
+RUN mkdir /tmp/classes && \
+    javac \
+    /tmp/java/org/frankframework/http/HttpSenderCached.java \
+    /tmp/java/org/frankframework/http/HttpSenderBaseCached.java \
+    -classpath "/usr/local/tomcat/webapps/ROOT/WEB-INF/lib/*:/usr/local/tomcat/lib/*" \
+    -verbose -d /tmp/classes
 
-# FROM ff-base
+FROM ff-base
 
 # Copy custom entrypoint script with added options
 COPY --chown=tomcat docker/entrypoint.sh /scripts/entrypoint.sh
@@ -44,7 +48,7 @@ COPY --chown=tomcat src/main/resources/ /opt/frank/resources/
 COPY --chown=tomcat src/test/testtool/ /opt/frank/testtool/
 
 # # Copy compiled custom class
-# COPY --from=custom-code-builder --chown=tomcat /tmp/classes/ /usr/local/tomcat/webapps/ROOT/WEB-INF/classes
+COPY --from=custom-code-builder --chown=tomcat /tmp/classes/ /usr/local/tomcat/webapps/ROOT/WEB-INF/classes
 
 # Check if Frank! is still healthy
 HEALTHCHECK --interval=15s --timeout=5s --start-period=30s --retries=60 \

src/main/configurations/Translate/Configuration_GetRolTypenByUrl.xml

@@ -25,7 +25,7 @@
                 name="GetRolTypenByUrlSender"
                 getInputFromSessionKey="originalMessage"
             >
-                <HttpSender
+                <Sender className="org.frankframework.http.HttpSenderCached"
                     name="GetRolTypenByUrlHttpSender"
                     methodType="GET"
                     headersParams="Authorization,Accept-Crs"

src/main/configurations/Translate/Configuration_GetZaakDocumentByUrl.xml

@@ -26,7 +26,7 @@
 
 			<SenderPipe name="GetZaakDocumentByUrl"
                 getInputFromFixedValue="&lt;dummy/&gt;">
-				<HttpSender 
+				<Sender className="org.frankframework.http.HttpSenderCached" 
 					name="GetZaakDocumentByUrlSender" 
 					methodType="GET"
 					headersParams="Authorization,Accept-Crs"

src/main/configurations/Translate/Configuration_GetZaakTypeByUrl.xml

@@ -26,7 +26,7 @@
 
 			<SenderPipe name="GetZgwZaakTypeByUrlSender"
                 getInputFromFixedValue="&lt;dummy/&gt;">
-				<HttpSender 
+				<Sender className="org.frankframework.http.HttpSenderCached"
 					name="GetZgwZaakTypeByUrlHttpSender" 
 					methodType="GET"
 					headersParams="Authorization,Accept-Crs"

src/main/configurations/Translate/Configuration_GetZgwInformatieObjectTypeByUrl.xml

@@ -27,7 +27,7 @@
 
 			<SenderPipe name="GetZgwInformatieObjectTypeByUrl"
                 getInputFromFixedValue="&lt;dummy/&gt;">
-				<HttpSender 
+				<Sender className="org.frankframework.http.HttpSenderCached" 
 					name="GetZgwInformatieObjectTypeByUrlSender" 
 					methodType="GET"
 					headersParams="Authorization,Accept-Crs"

src/main/configurations/Translate/Configuration_GetZgwStatusTypeByUrl.xml

@@ -26,7 +26,7 @@
 
 			<SenderPipe name="GetZgwStatusTypeByUrlSender"
                 getInputFromFixedValue="&lt;dummy/&gt;">
-				<HttpSender 
+				<Sender className="org.frankframework.http.HttpSenderCached" 
 					name="GetZgwStatusTypeByUrlLocalSender" 
 					methodType="GET"
 					headersParams="Authorization,Accept-Crs"

src/main/configurations/Translate/Configuration_GetZgwZaakByUrl.xml

@@ -26,7 +26,7 @@
 
 			<SenderPipe name="GetZgwZaakByUrl"
                 getInputFromFixedValue="&lt;dummy/&gt;">
-				<HttpSender 
+				<Sender className="org.frankframework.http.HttpSenderCached" 
 					name="GetZgwZaakByUrlSender" 
 					methodType="GET"
 					headersParams="Authorization,Accept-Crs"

src/main/configurations/Translate/Configuration_Translate_GeefZaakdetails_Lv01.xml

@@ -49,7 +49,7 @@
 			</PutInSessionPipe>
 
 			<SenderPipe name="getZaakTypeByUrl" storeResultInSessionKey="zaakTypeJson">
-				<HttpSender 
+				<Sender className="org.frankframework.http.HttpSenderCached" 
 					name="getZaakTypeByUrl" 
 					methodType="GET"
 					headersParams="Authorization,Accept-Crs"
@@ -59,7 +59,7 @@
 					<Param name="Authorization" xpathExpression="concat('Bearer ', $token)" >
 						<Param name="token" sessionKey="token" />
 					</Param>
-				</HttpSender>
+				</Sender>
 				<Forward name="exception" path="ErrorJsonToXml_2" />
 			</SenderPipe>
             <JsonPipe name="ErrorJsonToXml_2">
@@ -82,7 +82,7 @@
 			</XsltPipe>
 
 			<SenderPipe name="getRollenByUrl" getInputFromFixedValue="&lt;dummy/&gt;" storeResultInSessionKey="rollenJson">
-				<HttpSender 
+				<Sender className="org.frankframework.http.HttpSenderCached" 
 					name="getRollenByUrl" 
 					methodType="GET"
 					headersParams="Authorization,Accept-Crs"
@@ -93,7 +93,7 @@
 					<Param name="Authorization" xpathExpression="concat('Bearer ', $token)" >
 						<Param name="token" sessionKey="token" />
 					</Param>
-				</HttpSender>
+				</Sender>
 				<Forward name="exception" path="ErrorJsonToXml_3" />
 			</SenderPipe>
             <JsonPipe name="ErrorJsonToXml_3">

src/main/configurations/Translate/Configuration_Zaken_GetZgwRolTypeByUrl.xml

@@ -27,7 +27,7 @@
 			<SenderPipe 
                 name="GetZgwRolTypeByUrlSender"
                 getInputFromFixedValue="&lt;dummy/&gt;">
-				<HttpSender 
+				<Sender className="org.frankframework.http.HttpSenderCached" 
 					name="GetZgwRolTypeByUrlHttpSender" 
 					methodType="GET"
 					headersParams="Authorization,Accept-Crs"